UROLOGY ENCYCLOPAEDIA

Ulcer in strictest sense means a wound caused by broken skin. But people tend to use it synonymously with peptic ulcers( stomach ulcers). Peptic ulcers are ulcers of stomach and duodendum. These sores are generally 1/4 inch to 3/4 inch in diameter.

Unexplained infertility

Means that no cause of infertility was found in either the woman or the man.

Uterus

The reproductive organ that houses, protects and nourishes the developing embryo/fetus. It is a hollow, muscular structure that is part of the female reproductive tract and is the source of a woman's menses womb.